Re: Touch coordination, shape, size and strength

בע"ה


I think today screens can be more sensitive (with built-in multiple
sensors) and recognize if touched human body, plastic or metal object with
temperature measure and electrical conductor.


Binyamin


On Mon, Jan 6, 2014 at 11:59 PM, Doug Schepers <schepers@w3.org> wrote:

> Hi, Binyamin–
>
> Sorry, I missed this earlier...
>
> I don't know the context here, so I don't know exactly what you're
> commenting on. Have you seen the Pointer Events spec?
>
> Here is the interface [1]:
>
> dictionary PointerEventInit : MouseEventInit {
>     long      pointerId = 0;
>     long      width = 0;
>     long      height = 0;
>     float     pressure = 0;
>     long      tiltX = 0;
>     long      tiltY = 0;
>     DOMString pointerType = "";
>     boolean   isPrimary = false;
> };
>
> It doesn't support shape detection per se, but it does address contact
> geometry via width and height (so, an implied rectangle), and pressure, as
> well as multi-touch. All of this assumes that the device itself is capable
> of these distinctions, of course.
>
> It doesn't detect different materials (finger, gloves, foot, pencil,
> etc.), because most screens can't make those distinctions (though some can
> detect degree of conductivity of the touching item), but the pointerType
> property [2] does allow you to distinguish between mouse, pen, and touch
> (where it is known).
>
> If you have other feedback, or want to suggest new features or reliable
> ways of doing more detection, please let us know at
> public-pointer-events@w3.org.
>
> [1] http://www.w3.org/TR/pointerevents/#pointerevent-interface[2]
> http://www.w3.org/TR/pointerevents/#widl-PointerEvent-pointerType
>
> Regards-
> -Doug
>
>
> On 1/6/14 2:53 PM, Binyamin wrote:
>
>> בע"ה
>>
>>
>> Hi Marcos and Doug,
>>
>> Any feedback for the proposal request - touch coordination, shape, size
>> and strength?
>>
>>
>> Binyamin
>>
>>
>> On Wed, Dec 18, 2013 at 2:09 AM, Marcos Caceres <w3c@marcosc.com
>> <mailto:w3c@marcosc.com>> wrote:
>>  >
>>  > Hi Binyamin,
>>  > Sorry to top post, but I wonder if this is better feedback for the
>> IndieUI group? I’ve cc’ed Doug Schepers who can probably say where this
>> feedback would be most valuable.
>>  >
>>  > http://www.w3.org/WAI/IndieUI/
>>  >
>>  > --
>>  > Marcos Caceres
>>  >
>>  >
>>  > On Tuesday, December 17, 2013 at 5:09 PM, Binyamin wrote:
>>  >
>>  > > בע"ה
>>  > >
>>  > >
>>  > > Implement Web API to return super-sensitive multi-touch
>> coordination, shape, size and strength.
>>  > >
>>  > >
>>  > > Steps to reproduce:
>>  > > Touch on screen with any kind and shape of object (finger, gloves,
>> foot, pencil, etc.).
>>  > >
>>  > > Current results:
>>  > > Currently returns just approximate touch coordination.
>>  > >
>>  > > Expected results:
>>  > > Return data of touch coordination, shape, size and strength
>> (strength could be calculated also to weight). Must works also on
>> multi-touch.
>>  > >
>>  > > Resources:Georgia Tech pressure-based sensor
>> https://plus.google.com/+BinyaminLaukstein/posts/SKykHFaESFe is able to
>> return all that data.
>>  > > Current very-basic touch size implement on Android with
>> MotionEvent.getSize()
>> http://developer.android.com/reference/android/view/
>> MotionEvent.html#getSize%28int%29
>>  > >
>>  > >
>>  > > Binyamin
>>
>